Παραπομπή APA

Wrigley, H., George, S., Smith, H., Snooks, H., Glasper, A., & Thomas, E. (2002). Trends in demand for emergency ambulance services in Wiltshire over nine years: Observational study. BMJ.

Παραπομπή Chicago Style

Wrigley, Hannah, Steve George, Helen Smith, Helen Snooks, Alan Glasper, και Eileen Thomas. Trends in Demand for Emergency Ambulance Services in Wiltshire Over Nine Years: Observational Study. BMJ, 2002.

Παραπομπή MLA

Wrigley, Hannah, et al. Trends in Demand for Emergency Ambulance Services in Wiltshire Over Nine Years: Observational Study. BMJ, 2002.

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